Water jet base



FIG. 1 is a front perspective view of a water jet base showing our new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a left side elevation thereof;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a right side elevation thereof; and,

FIG. 6 is a top plan view thereof. 

We claim the ornamental design for a water jet base, as shown and described. 